Where to source hex head thumb wheel.

[[3889]]

I'm after something like this:
http://www.thingiverse.com/thing:74472
but for an M10 bolt (100mm).
Any ideas if such a thing exists or a way to make one that doesn't involve any hand-eye co-ordination skills beyond a three year old's?

 

[prv]

What do you actually need to do? For instance, does the new part need to be removable? Could you substitute the entire bolt with a new one?

It would probably be possible to hand-make a copy of that design using a drill, a small file, and a lot of elbow-grease, but it would need those coordination skills and would be best avoided if another solution can be found.

Pete

 

[[3889]]

It's for a brake spinner on a wheel. I have the bolt with the required 50mm of thread stripped and hoped to make one up to feel smug at avoiding Lewmar's £65 charge for the part.
My tool kit comprises hammer and molegrips so if I can't get a pre-fab part I'll bite the bullet at the chandlers.

 

[CET1]

One of these companies might have something for the job

http://www.indifit.co.uk/downloads/indifit_catalogue.pdf

http://www.componentforce.co.uk/category/228/handles---handwheels

http://www.skiffy.com

good luck.

 

[prv]

I can think of several ways of making a substitute part, but they all involve more tools than molegrips and a hammer

Might be best just to bite Lewmar's bullet if that really is your level - it will look nicer too.

Pete

 

[BabaYaga]

This might be what you are looking for (but with a "neck"):
http://www.wiberger.se/templates/wn460-2.htm
Not in UK, though.

 

[SimonD]

Something like this? http://www.ebay.co.uk/sch/bak-rak-s...rs=1&_from=&_ipg=25&_trksid=p3984.m1439.l2654

It's 8mm but there are plenty on Ebay in different sizes

 

[colhel]

I can make you one.

Or if you want a go: To get the thumb bit you drill holes on a PCD then turn the diameter so you get half the holes left.

 

[Highndry]

Not sure what pressure/torque you need to apply to the part but couldn't you mould a head from Polymorph?

 

[[3889]]

One of these companies might have something for the job

Thanks Cet1, componentforce have a female knob (oxymoron?) similar to Babayaga's suggestion so I may look at using that with some s/s studding.

Something like this? http://www.ebay.co.uk/sch/bak-rak-s...rs=1&_from=&_ipg=25&_trksid=p3984.m1439.l2654
It's 8mm but there are plenty on Ebay in different sizes

Another possibility - found a nice pair of polished s/s but at £25 may be better buying Lewmar part.

I can make you one.

Or if you want a go: To get the thumb bit you drill holes on a PCD then turn the diameter so you get half the holes left.

This is part of my problem - I don't know what a PCD is!

Not sure what pressure/torque you need to apply to the part but couldn't you mould a head from Polymorph?

Never seen this stuff - what a sheltered DIY life I've led, looks very promising and good fun even if it doesn't work.

Thanks to all for v. useful suggestions - plenty to go on.
Andy

 

[Highndry]

Polymorph is easy to mould and seems to set hard enough to take a decent level of pressure. If it's for adjustment rather than locking something down I think it would do a decent job.

 

[pampas]

PCD=Pitch circle Diameter

 

[[3889]]

Went for one of these in the end , which I think looks rather nice. Knowing what search terms to use made a big difference.
Ordered some polymorph as well, which looks like useful stuff.
Thanks again for all replies.
Andy

 

[dutyhog]

It's useful that you can buy these for metric bolts. I needed a pair for imperial bolts, and moulded them in a plasticine impression of the broken bits, in a plastic can around the bolt head with resin and filler, then filed it to a more precise shape.